ANI (file format)
| Filename extension | 
.ani | 
|---|---|
| Internet media type | application/x-navi-animation | 
| Magic number | ACON(4 bytes, ASCII) | 
| Developed by | Microsoft | 
| Type of format | animated raster image format for mouse cursors | 
The ANI file format is a graphics file format used for animated mouse cursors on the Microsoft Windows operating system.
The format is based on the Microsoft Resource Interchange File Format, which is used as a container for storing the individual frames (which are standard Windows icons) of the animation.